Insulated container



Nov. 28, 1933. BUBB 1,937,263

INSULATED CONTAINER Filed Aug. 17, 1951 HIS END UP UNTIL. OPENED Patented Nov. 28, 1933 INSULATED CONTAINER.

Harry A. Babb, Monroe, La., assignor to Home, Food Company, Inc, a corporation of Louisiana Application August 17, 1931. Serial No. 557,684

1 Claim.

My invention relates to improvements in nonconducting containers for food products such as ice-cream, or other commodities the temperature of which is above or below atmospheric temper-- ature. The principal object of the invention is to provide a container which can be cheaply manufactured, is capable of easy application and which will maintain the temperature of the commodity above or below a predetermined minimum for a comparatively long period.

Thus the invention consists of differently sized inner and outer members or bags, the side walls and bottoms'of which are spaced apart a substantial distance, the inner bag member being adapted to receive the ice-cream or other commodity the temperature of which is to be preserved. The intervening space between the side walls of these members is filled with insulating material such as hay. The commodity to be transported such as a carton of ice-cream or hot coffee, is placed within the inner bag andthe open end of this bag is then closed, in any suitable manner, such as by tightly folding. A third envelope or bag stuffed with hay, and preferably of a shape to fit snugly within the outer bag is then placed over the folded open end of the inner bag and the open end of the outer bag is then closed, also by folding.

In the accompanying drawing:

Figure 1 is a perspective View of my improved container showing the position in which it is to be maintained until opened;

Figure 2 is a perspective view showing the proper position of the container during the filling and sealing; i V

Figure 3 is a vertical section through the container showing a carton of ice-cream therein;

Figure 4 is a perspective view partly in section of the outer bag member;

Figure 5 is a perspective view partly in section of the inner bag member and carton; and

Figure 6 is a perspective view of insulating member or pad.

Referring more particularly to the denotes a container which includes spaced inner and outer bag members 2 and 3 respectively, preferably of air tight paper, and having tightly sealed bottoms 4 and 5 and normally open upper ends 6 and 'l-respectively. The commodity, the

temperature'of which it'is desirable to maintain substantially fixed for a period of time, such as a carton of ice-cream, coffee or the like 8, is,

inserted within the inner bag 2. The space'Q between the bottom and sidewalls of thexbag members 2 and 3, is filled with hay or other suitable insulating material 10, capable of preventing or resisting the transfer of heat from the carton drawing '1" ing and an insulating member 11, is then placed bag member 3' isthen folded in a similar manner,

and is preferably sealed in closed position by means of an adhesive strip 13. The container 1,

should then be inverted, and maintained in this position until opened. This is essential for the reason that heat travels upwardly and consequently the permanently closed lower ends of the bag membersv will oifer a greater obstacle to the escape of heat than the'folded upper ends thereof. To insure this desideratuin, all reading matter such as'carrying and openingdirections lion the outer bag member 3, are preferably inverted, that is printed upside down with respect to the top and.bottom of the container.

From the foregoing it will be seen that the contents of the inner bag member 2 will be preserved against temperature changes for a considerable periodof time. The hay packing or insulation 10, protects the sides and closed bottom ends of the container, while the hay filled paper envelope or bag 11 protects the open top thereof. In practice I have found that my improved container, when used in the manner just described, will keep ice cream in the state of preservation as when placed in the bag for four to five hours, while it will keep coffee; soup etc. hot for a period of from eight to twelve hours. I 7

The inner bag member 2, pad 11 and insulating material 10, can be readily removed. from the outer bag member 3, and consequently the two bags can if desired be used for other purposes, should the user decide to dismantle the container.

Having thus described my invention; what I claim as my invention is:

An article of manufacture for preserving packed food products against temperature changes comprising open ended inner and outer containers, said outer container being partiallyfilled with insulating material surrounding and terminating at thejmouth of the inner container, said inner container being flexible. and having a portion protruding beyond the insulation sufficient in size to constitute a closuretherefor, said container being adapted to be placed in inverted s to the outer bag 3. After the carton s has.

been inserted withidthe inner bag member, the open end 6 of thelatter'is tightly closed by fold- 

